241565840 has 20 divisors (see below), whose sum is σ = 561640764. Its totient is φ = 96626304.

The previous prime is 241565839. The next prime is 241565843. The reversal of 241565840 is 48565142.

It can be written as a sum of positive squares in 2 ways, for example, as 164968336 + 76597504 = 12844^2 + 8752^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 241565840.

It is not an unprimeable number, because it can be changed into a prime (241565843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509707 + ... + 1509866.

Almost surely, 2^241565840 is an apocalyptic number.

241565840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

241565840 is an abundant number, since it is smaller than the sum of its proper divisors (320074924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

241565840 is a wasteful number, since it uses less digits than its factorization.

241565840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019586 (or 3019580 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 241565840 is about 15542.3884908337. The cubic root of 241565840 is about 622.7950806095.

The spelling of 241565840 in words is "two hundred forty-one million, five hundred sixty-five thousand, eight hundred forty".